EphFid 60:5.4 :ܐܢܗܘ ܕܡܪ̈ܚܐ ܐܫܬܟܚܘ ܕܫܪܝܪܝܢ ܢܒ̈ܝܐ ܛܥܘ ܡܕܝܢ‏ : if the daring ones turn out to be right then the prophets erred
See the entire entry for māḏēn conj./adv. therefore